Aib conditioning apparatus



Dec. v10, 1935. 1 c. SMITH AIR CONDITIONING APPARATUS Filed Sept. '7, 1934 ,f ,L/ MJ /nw 'pipe t.

Patented Dec. 10, 1935 AIB CONDITIONING APPARATUS o. smith, New vork, N. y., mignon to Heating Ventilating & Air lConditioning Co., Inc., New York, N. Y., a corporation of New York . application september '1, 1934, serial No. 743,034

6Claims.'

This invention relates to apparatus for vwarming, cooling or otherwise conditioning air, and has for one of its objects theuprovision of`a simple, compact and inexpensive apparatus vparticularly well adapted for conditioning the air of isingle rooms, although of course not limited to single rooms, the apparatus being of such a nature that it can be installed near kthe ceiling where it is out of the way and does not present an unsightly appearance. I

In the drawing accompanying the application: Fig. lis a view showing the apparatus installed;

, Fig. 2 is a section on the line 2-2 ot Fig. `1; snrvl'ig. a is nyseotion on the iine i-l-s, or Fig. 2;'

Fig. 4 is a sectional elevational view of a modification.

Referring to the drawing in detail, my conditioning apparatus includes a casing comprising a body portion I within which I mount plates referred to hereinafter ias/'conditioning plates. 'I'hese plates designated 2 and 3 are of corrugated metal extending from top to bottom lof the body portion I of the casing of the apparatus. These plates which are wound or bent inthe form of a spiral are spaced apart by lugs I.

The space between the plates 2 and 3 is for .the circulation of 'either a cooling medium such -as cold water or awarming medium such as warm water, this conditioning mediumvbeing admitted to the inner end oi' the spiral through The water circulates through the spiral space between the plates 2 and I and discharges from the apparatus through pipe B which may lead back tothe supply. It will be understood that my apparatus comprehends the use `of fluids I. by electric motor 8 mounted on the bottom of.v

other than water. 'I'he air to beconditioned is drawn into the casing I lby a f an 'I mounted at the top of the 'apparatus immediately above the center of the apparatus. fan being driven the casing.

In the convenient arrangement show'n in Fig. 1

. air isdrawn from the room 9, upwardly through duct Il in one wall thereofthrough intake II provided by the plates 2 and 3, counteriiow to the conditioning medium, nally being dis- Icharged by the fan I through duct I2 baci:- into the room 8 again. y As mentioned above the fan 'I is driven by a motor l secured to the bottom I3 of'th casing I of the apparatus, the shaft of this `motor ex-.

tending upwardly through the space Il in the center of the apparatus.

'I'he lower end of the conditioning platesv 2 and l may be closed by channel members Il welded or otherwise secured to the bottom |315` of the casing ofthe apparatus while the upper end of these plates may be closed by similar channel members I5 welded o r otherwise secured to a plate I6 across the top of the casing, this plate I6 and the cover II of the casing being 10 sealed at I8 to the body portion ,I of the casing. The fan 'I is completely enclosed as shown.

'I'he intake II of the device or apparatus as seen in Fig. 3 extends from top to bottom of the apparatus and at this intake opening I provide 15 a removable filter which ignay take the form oi a wire mesh tube 20 illled with any suitablematerial 2|, such as cotton for example. Y

The tube 20 may be removed from time to time and the nltering. material 2| replaced or 20 cleaned. I

'Ihe conditioning fluid, for example, water, and which may be taken froma suitable source of supply, 4circulates throughout the entire space provided by spirally winding the plates 2 and 25 l and inasmuch as these plates additionally are of corrugated metal, it will be seen that the conditioning iluid is obliged to contact with a very large surface. By the same token the air tobe To reduce the speed ofthe air passing through 35 theapparatus to insure its thorough cooling or heating, as the case may be, I provide bailles 22 in the space between the convolutions oi' the spirally bent plates 2 and l.

In the modification shown in Fig. 4 I have pro- 40 vided a construction similar to that already described, in that I employ corrugated metal plates '2 and vl wound or bent into a spiral. In this construction additionally I employ pipes 23 which are wound spirnuy, met in one direction and 45 then in the opposite and laid between the plates 2 and 3. This construction is advantageous where the conditioning iiuid is under pressure, it being understood that in this embodiment of the invention .the conditioning .uid is circulated 50 through the pipes 2l lying. in the space between the plates 2 and 3 instead of merely throughhthis space as in the ilrst form described. v It is to be understood that changes may made in the details of constructioinand arrange- 55 ment of parts above described within the spirit and scope of my invention.

What I claim is:-

1. Air conditioning apparatus comprising in combination an enclosing casing having an intake and a discharge, a plurality of plates Within the casing wound in the form of a spiral with the convolutions of the spiral in spaced relation, an air intake for the casing adjacent the outer periphery of the spiral, an air discharge adjacent the inner end of the spiral, means for drawing air into said intake and circulating the same between the convolutions ofthe spiral in contact with the surfaces of the said platesrand for discharging the air from the casing, and means for admitting a conditioning fluid to the space between the plates of the spiral for circulation through the spiral out of contact with the air to be conditioned and discharged from the spiral to the exterior of said casing.

2. Air conditioning apparatus comprising in combination an enclosing casing, a pair of plates within the casing, said plates being spirally wound with the convolutions of the spiral lin spaced relation for the circulation of air in a spiral path through the space thus provided, baille plates in said space arrangedin spaced staggered relation to-each other, and means for circulating a conditioning fluid through the'v space between the said plates, counterflow to and out of contact with the air flowing through the first mentioned space between the convolutions of the spiral.

3. Air conditioning apparatus comprising in combination an enclosing casing, a pair of corrugated metal plates within the casing, said plates being Wound in a spiral with the convolutions of the spiral in spaced relation, air-circulating means for drawing air into the casing and forcing the same through the spiral passageway provided by the spacing of the convolutions of the spiral and discharging the air from the casing at the center of the spiral, and means for circulating a conditioning fluid through the spiral passageway provided by the spacing of the plates, counterow to the passage of the air.

4. Air conditioning apparatus comprising incombination an enclosing casing having an intake and a discharge, a pair of corrugated metal plates wound in a spiral disposed within said casing, the outer end of the spiral being disposed adjacent the casing intake, the inner end of the spiral being disposed adjacent the outlet of the casing, a fan mounted -at the outlet of the casing for drawing air into said casing and forcing the 5 same along the spiral space between the convolutions of the spiral and for nally discharging the air from the casing, and pipes connected to the inner and outer ends of the spiral for supplying conditioning uid to the spiral space between l0 the said plates for circulation through said space counterflow to the passage of the air circulating through thel space between the convolutions of the spiral.

5. Air conditioning apparatus comprising in 15 combination an enclosing casing, a pair of spaced corrugated metal plates Within said casing and extending vertically thereof, said plates being wound spirall;7 with a space between the convolutions of the spiral, said space terminating at 20 an elongated vertically extending opening in the wall of said casing, a motor mounted on the lower end of said casing, an armature shaft therefor extending upwardly through said casing, a. fan at the upper end of said shaft driven by said motor 25 for drawing air through the side of the casing and circulating the same through said space between the convolutions of the spiral in contact with the outer corrugated surfaces of said plates and discharging it from the upper end of the cas- 30 ing, and means for circulating a conditioning uid through the spiral space between said plates in contact with the inner corrugated surfaces of said plates counterflow to the air passing along the outer surfaces of said plates.

6. Air conditioning apparatus comprising in combination an enclosing casing, a pair of spaced corrugated metal plates within said casing wound spirally with a space between the convolutions of the spiral, spacer members between the metal plates, baffle plates in the spiral passageway between the convolutions of the spiral, means for drawing air into the casing for circulation in the space between the convolutions of the spiral, a removable lter in the path of the air entering the casing, and means for circulating a conditioning fluid between the plates counterow to the air.

LEONARD C. SMITH. 

